Re: [libvirt] [Qemu-devel] change x86 default machine type to Q35?

Hi, > Concerning QEMU, could we maybe simply emit a warning a la > >  "you did not specify a machine type with the -M option, so you are >   currently running the the 'pc' machine type. Please note that > future >   versions of QEMU might use the 'q35' machine type instead. If you >   require the 'pc' machine type for your setting, then please specify >   it with the -M option." Warnings tend to get ignored until things are actually break, so I don't think this helps much. I think simply not having a default machine type (as already suggested elsewhere in this thread) is the best way to deal with this. That way we don't silently change behavior. It also is in line with what we have on arm where we already require the user to explicitly pick a machine type.